Ostania's counterintelligence agency and national security bureau conducts spy hunts and keeps surveillance on its citizens to maintain peace within the country. They are also called the Secret Police and are feared. Yor's younger brother Yuri actually belongs to the Secret Police and is hunting down spies while keeping this a secret from Yor and others around him. One day, he suddenly shows up at the Forger residence. The Forgers, who are full of secrets, and Yuri, who has a secret identity, come face to face!
I must make sure she never 
finds out about this!
!عليّ أن أحرص ألاّ تكتشف هذا أبدًا
darf nichts davon ans Licht kommen.
devo fare in modo
 che non scopra la mia identità.
não posso deixar
que ela descubra!